US2012154461A1PendingUtilityA1

Liquid Crystal Display Device For Displaying Video Data

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Assignee: NISHITANI SHIGEYUKIPriority: Mar 27, 2000Filed: Feb 24, 2012Published: Jun 21, 2012
Est. expiryMar 27, 2020(expired)· nominal 20-yr term from priority
Inventors:Shigeyuki NishitaniTakeshi MaedaKazuyoshi KawabeHiroshi KuriharaTetsuo TakagiToshiaki Ohashi
G09G 3/3406H04N 5/66G09G 2320/0646G09G 2320/0276G09G 2320/0633G09G 2320/0626G09G 2320/0606G09G 2360/16G09G 3/3611G09G 2320/066G09G 3/2007G09G 3/36
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Claims

Abstract

A liquid crystal display device for displaying video data includes a liquid crystal panel, a back light for illuminating the liquid crystal panel, an input video data characteristic detection section for detecting a luminance characteristic according to gradation of the inputted video data, and a back light control section for controlling an amount of light of the back light in accordance with the luminance characteristic.

Claims

exact text as granted — not AI-modified
1 . A liquid crystal display device for displaying video data comprising:
 a liquid crystal panel,   a back light for illuminating the liquid crystal panel,   an input video data characteristic detection section for detecting a luminance characteristic according to gradation of the inputted video data, and   a back light control section for controlling an amount of light of the back light in accordance with the luminance characteristic.   
     
     
         2 . A liquid crystal display device according to  claim 1 , wherein the luminance characteristic contains an average luminance in one or plural frames. 
     
     
         3 . A liquid crystal display device according to  claim 1 , wherein the back light control section relatively decreases the amount of light of the back light when the luminance in one or plurality of frames is lower compared with the luminance in an other one or plural frames. 
     
     
         4 . A liquid crystal display device according to  claim 1 , wherein the back light control section relatively increases the light amount of light of the back light when the luminance in one or plural frames is higher compared with the luminance in an other one or plural frames. 
     
     
         5 . A liquid crystal display device according to  claim 1 , wherein the back light control section decreases the amount of light of the back light when the luminance of the inputted video data decreases. 
     
     
         6 . A liquid crystal display device according to  claim 1 , wherein the back light control section increases the amount of light of the back light when the luminance of the inputted video data increases.

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